Process of making terminals.



H. B. ANDREWS.

PROCESS OF MAKING TERMI ALS.

APPLICATION FILED MAY 8, IBIS.

Patented Jun 22, 1915.

Q Vih I cmeo i E sT-A'r v:

HERBERT RANDREWS. 0 'EA'r'rLE GREEK, MICHIGAN; ASSIGNOR T0 E. B. SHERMANmauumo'ruamo oomraum-orrarrnn GREEK, MICHIGAN, A oonromrxou or MICHIGAN.

rnoonss or MAKING: TEEMrnALs.

Specification'of Letters Patent.

. issunn Patented-June 22, 1915 a I a ueauon filed ma 8, 1915. SerialNo. 26,802.

To all whom it may concern:

Be it known that I, HER ERT B. Aummws, a citizen of the United tates,residing at Battle Creek, in-the county of Calhoun and State ofMichigan, have invented certain new and useful Improvements in Processesof Making Terminals, &c.; and Ihereby declare that the following is afull, clear, and exact either by bending them up out of pieces of sheetmetal, or by cutting metal tubes into short sections and fiatting oneend of each sectionl The resultant terminals are roughv in appearance,and the labor and machinery a required for their manufacture makes themexpensive. As compared with the prior methods the present invention'economizes metal, reduces the cost of manufacture, produces a morefinished looking terminal, and reduces waste of material to the minimum.

I will explain the invention in connection with the accompanyingdrawings which illustrate the various steps employed in the process ofmanufacturing terminals and the like, and will enable others to. adoptand use the same. I

In said drawings :--Figure 1 is a diagrammatic view of a blank which maybe used in the initial'step of forming a-hanger or terminal. Fig. 2 is asectional view illustrating a cup formed from such a blank by drawingthe same. Fig. 3 is a sectional view of the-cartridge produced from suchblank and readyfor fiatting: Fig. 4: is a side view of the cartridgeflatted to produce a terminal, the original form of the cartridge priorto fiatting being indicated by the exterior dotted line. ,Fi'g. 5 is atop plan view of the complete terminal. Fig. 6 is a longitudinalsectional view on line 6-6 Fig. 5.- 4.

In making a terminal by this process a the unflattened blank, as 1 Fi1,=is punched out of sheet metal, preferab y copper; said blank beingthen drawn or cupped either in the original suitable die press or in theusual well known manner into cup shape as indicated at 1 Fig. 2. Thiscup 1 is then drawn, by further drawing operations in a suitable diepress, in the well known manner, into an elongated cartridge 1", Fig.3,- such cartridge" being of about the internal diameter desired for thesocket of the finished terminal. The closed end "of the cartridge 1 isthen flattened between the points a and b, as indicated in Fig. 4 by anysuitable means, the flattened portion forming the tang 1 of the finishedterminal and the unflattened portion forming the socket 1 of thefinished terminal, the tang and socket being integral. The tang portion1 has its outer end rounded as indicated at 1 such end being formed bythe compression of the closed end of the cartridge; and the part 1 iswider than the socket portion 1 or the original diameter of thecartridge 1*; the connection between the socket 1 and tang 1 isstiffened by the side portions or flanges 1 which are produced by orduring the fiatting operation on the part 1. The tang 1 is perforated at1 by a suitable tool or machine in the well known manner for the passageof a securing bolt, or for engagement with a nail, hook, binding post ormember to which the terminal is to be attached. Terminals and the likethus formed will be uniform in appearance, and can all be drawn fromblanks of uniform thickness and quality and their tangs have no sharpangles, corners or rough edges.

The aforesaid method of construction of preciated by those familiar withthe art.

What I claim is:

1; The process of making terminals and the like consisting in drawing ablank into a cartridge of the desired length and diameter, and fiattingthe closed end of such cartridge to form the tang ofthe terminal,

eter, fiatting the closed end'of such cartportion forming the socket 10sired for the terminal socket, then flatting the closed end of suchcartridge to form the tang of the terminal, the unflattened portionforming the socket thereof, substantially as described.

In testimony that I claim the foregoing 15 as my 0wn,'I affix mysignature in presence of two Witnesses.

HERBERT B. ANDREWS:

Witnesses:

F. G. buns, PHILIP Ross.

